3838431

Information

• Patent Grant
• 3838431

• References
• Source

• Patent Number

  3,838,431

• Date Filed

  Not available

• Date Issued

  Tuesday, September 24, 1974
  50 years ago

• CPC

  • B41J2/475 - for heating selectively by radiation or ultrasonic waves
  • B41J2/4655 - using character templates

• US Classifications

  • 347 - Incremental printing of symbolic information
  • 250 - Radiant energy
  • 430 - Radiation imagery chemistry: process, composition, or product thereof